A Boeing 787 jet lands at Boeing Field in Seattle after a test flight on Feb. 11. / Elaine Thompson, AP

by Bart Jansen, USA TODAY

by Bart Jansen, USA TODAY

The head of a United Nations panel is recommending a prohibition against shipping lithium-ion batteries as cargo on passenger planes, as investigations continue into problems with batteries that power Boeing's 787 Dreamliner.

The decision from president of the International Civil Aviation Organization's governing council, which sets non-binding policies for airlines worldwide, reverses a policy from Jan. 1 that allowed 35 kilograms of lithium batteries in cargo on passenger planes.

The batteries have long been restricted because of suspicions they caused fires in cargo planes.

"Safety is the number one priority of the aviation community and we are very confident that this situation will eventually be resolved in a manner that further supports air transport's admirable safety performance while addressing the concerns of all stakeholders impacted by these events," Roberto Kobeh Gonzelez, president of the ICAO Council, said in proposing the prohibition.

The full council is expected to consider his proposal in a meeting later this month. Gonzalez stressed that the prohibition applies only to lithium-ion batteries, and at the move is temporary while the Dreamliner investigations continues.

An industry group, PRBA-the Rechargeable Battery Association, deferred to airlines in supporting the ICAO decision. But the battery group stressed that lithium-ion batteries weighing up to 11 pounds are still allowed for transport.

George Kerchner, executive director of the battery association, also noted that issues surrounding cargo shipments of safely packaged lithium batteries are different from issues in batteries being used to power a plane like the 787.

"Safety is the PRBA's No. 1 priority," Kerchner said. "We continue to caution against a rush to judgment about the general safety of lithium-ion batteries until all the facts are in."

The Federal Aviation Administration granted special permission to Boeing to use lithium-ion batteries in the 787 as the company made the innovative plane 20% more fuel efficient. But regulators worldwide grounded the fleet of 50 planes last month after problems aboard two of the planes.

Safety investigators in the United States and Japan try to determine what caused a fire Jan. 7 in a battery aboard a Japan Airlines plane parked in Boston and a smoldering battery that forced the emergency landing Jan. 16 of an All Nippon Airways plane in Japan.

The National Transportation Safety Board found the Boston fire started in the battery, but investigators haven't yet found the cause. Boeing is participating in the investigation with the FAA and NTSB.

Three cargo-plane crashes are suspected of fires stemming from packages of batteries:

On July 28, 2011, an Asiana Airlines Boeing 747-400 carrying electronics crashed in the East China Sea, killing both pilots.

On Feb. 7, 2006, fire broke out aboard a UPS McDonnell Douglas DC-8 as it approached Philadelphia. The three pilots escaped after landing, but the plane and most of the cargo were destroyed. The plane contained numerous lithium batteries, but the National Transportation Safety Board wasn't able to pinpoint which cargo caused the fire.